Strike-plate for spring-latches.



H. G.- VOIGHT. STRIKE PLATE FOR SPRING'LATCHES. APPLICATION FILED JULY20,1911.

1,004,71 e. Patented 001. 3, 1911 box 3. v

9-is a headon the rear of the shaft 8.

To all whom it may co warn: Be it. known that I, HENRY, G. VOIGHT,

,New Britain, county of Hartford, State of useful Improvements inStrike-Plates for Spring-Latches, of which the following is a full,clear, and exact description.

advance movement of the latch into the keeper opening is freeandunretarded.

2 represents a occupies-the filler opening flush with the surface of thestrike-plate. v

able manner, as by a thread. The plate 9 T is located preferablybetween'the head block: brake 10 bearing against theplate 9 re- 110'when, srarns ma enrich.

HENRY VOIGHT, OF NEVI BBITAIN, CONNEGTIOUT, ASSIGNOR TO RUSSELL & ERWINMANUFAGTURINGCOMPANY, OF NEW 13 CONNEGTIOUT.

Application filed July 20,

citizen of the United States, residing at Connecticut, have inventedcertain new and v My invention relates to an improved strikeplate for'spring latches, the object being to,

provide: a construction whereby when the latch springs into the keeperopening insaid strike-plate it will be retarded so as to prevent thedisagreeable clicking noise. In

many public institutions, such as hospitals and sanitariums, thisclicking noise is a sourceflof great annoyance, and it'is to overcomethis,objectionablefeature that my invention is mainly aimed; In thepresent inventionthe construction is such that the first In-the'accompanying drawings, Figure 1 sembled ready for use and in its normalposition. Fig. 2 is a-similar "View showing the parts in a differentposition. Figs-3, 4, 5, 6"

each showjtwo views of different det ls I 3 1 represents a'strike platehaving the usual,

filler plate which normallyvf 3 is, 'a box like rearward-extension onthe plate 1. The filler-plate 2 is guided in the.

" 4r'is a rearward sleeve-like extension on th 5 is a ca-o'for' the rearof the box 6Iis a sleeve-like extension at the rear of the cap 5.-

'7 is aco'ntraction intermediate the length of the bore of the extension6.

8 is a shaft having a spiral thread thereon.

This head normally lies just to the rear ofthe contraction 7.

9 is a friction disk or plate, to the rear of the head 9 and normallyout of operative engagement therewith. 10 is a head block at the rearend of the extension 6 and-secured thereto in any suit- Specification ofLetters Patent.

R-ITAIN,

STRIKE-PLATE FOB SPRING-LATCI-IES.

1911; Serial No. 639,545.

, l0 and the end of the. extension 6, and is capable of rotation.

10 is -a brake carried block 10 and bearing against the plate 9. Thespring lO 'may ormay not be adjustable as desired. I i

- The head block 10 may or may not headjustable on the :extension 6 asdesired. 4

lltis a lock scr'ewfor the head block.

sion 4. 1 f is'a pin carried by the extension 4, the end of'sai'd pinprojecting into the spiral on the shaft 8. i

15 15 are screws arranged to hold the cap' 5 against the rear end-of thebox 3.

16- 16 are lugs projecting forwardly from the plate 9. i

"from the head 9.

gsho'wn in Fig. 1; In this position the spring 112 holds the fillerplate 2 projected, and the "engagement of the pin 14: an 'the spiralshaft 8 tends to draw the head so that the lugs 17 will clear the lugs16' on influence of its'spring, press said plate 2 inwardly. The firstof this movement is Overcome only the strength of the spring 12,- whichis comparatively light. Since the "latch bolt may partake of its firstmovement againstbut little resistance, the forward end or nose of thelatch bolt enters into the keeper opening sufficiently so that there isno danger'of the door; swinging open. As soon as the plate 2. has beenrepressed or pressed in to a slight degree, it will, by reason of theengagement of the pin 14 in the spiral shaft 8, cause the head 9 to movebackwardly and away from the contraction 7,'thusbringing the lugs i'ntoengage ment with the lugs I6, which lugs operate after: the manner of aclutch to couple together the head 9 and the plate 9. Any

cause, through the aforesaid pin and spiral connection, rotation of-.the head 9, and throughthe medium of the clutch lugs, a correspondingrotation of the plate 9*. The

12 is a spring surrounding the shaft 8, the

The normal position of the parts is'as comparatively free, it beingnecessary tofurther repression of the filler plate 2 wilI.

CONNECTICUT, A CORPORATION OF Patented 0011.3, 1911.;

within the head ends of said spring bearing against the 9ontraction 7and the rear end of the extenforwardly,

the plate 9 When the spring latch bolt. engages the filler plate 2,itwill, under the- 75' 17l'7. are lugs projecting rearwardly' tards thefree rotation thereof to a sufficient extent to retard the inwardmovement of the filler plate 2, and correspondingly retard the.

and sufiiciently slow toprevent the aforesaid annoying click. \Vhen thelatch bolt is retracted, the clutches instantly release,.so that thehead 9 will turn with comparative freedom, and thereby permit the fillerplate 2 to qiiickly follow out the retracting latch until said fillerlate assumes its ndrmal closing position lndicated in Fig. 1. In Fig. 2the parts are shown in the position they would assume with the latchbolt projee'ted into the keeper opening, repressing the filler plate 2.a

What I claim is: v

1. In a strike-plate for spring latches, a

face plate having a keeper opening therein,

a filler plate for said opening movable to and fro,'a friction device,means of con- Inection between said friction device and said fillerplate, including a clutch, said clutch being arranged to engage when thefiller late is repressed and disengaged when the fil er plate isadvanced, and a spring for advancing said filler plate.

2. In a strike-plate for spring latches, a.

face-plate having a keeper opening therein, a filler plate adaptedthereto and arranged to be movable in and out, a rotatable shaft at therear of said plate,a spiral connection between the plate and shaftwhereby said; shaft will be rotated when said plate is moved in or out,a. rotatable friction plate, a brake therefor, a clutch between saidshaft and said friction plate whereby said shaftwill be connected withsaid friction plate I when said filler plate is moved inwardly and willbe disconnected from said friction plate when said filler plate movesoutwardly,

and a spring for advancing said filler plate.

3. In a strike-plate for spring latches, a face plate having a keeper.open ng therein, a filler plate adapted to said opening and mov lble inand out, and a friction brake'for tinlnling the inward movement only ofsaid filler plate.

4. In a strike-plate for spring latches, a

face platehaving a keeper openlng therein, 1

